Does not build with gcc-16 (workaround with -std=c++17)

[tillea]

Describe the bug
See Debian bug #1143665

To Reproduce
Build using gcc-16 (should be definitely reproducible in a Debian unstable container)

Expected behavior
Building with latest GCC version.

As you can see in this build log using -std=c++17 helps working around the problem.

Desktop (please complete the following information):

• OS: Debian
• Version: unstable/testing

[tillea]

Inspecting other patches applied to the Debian package I noticed that you even set std=c+11 which is removed in this Debian patch. I would recommend to not force some old C++ standard without good reasons.